期刊
PHYTOCHEMICAL ANALYSIS
卷 13, 期 2, 页码 114-120出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/pca.632
关键词
high speed countercurrent chromatography; HPLC-MS; NMR; X-ray; carajurin; 3-deoxyanthocyanidin; Arrabidaea chica
Two new 3-deoxyanthocyanidins, 6,7,3',4'-tetrahydroxy-5-methoxyflavylium and 6,7,4'-trihydroxy-5-methoxyflavylium, and the pigment carajurin, which has been previously identified, were isolated from dried leaves of Arrabidaea chica, a creeper native to the American tropics. The structures of the components were elucidated by H-1- and C-13-NMR spectroscopy and HPLC-MS, including X-ray crystallographic analysis for carajurin. Copyright (C) 2002 John Wiley Sons, Ltd.
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